The anaerobic glucolosis energy system Flashcards
Rate and yield
The anaerobic glycolysis energy system produces energy by PARTIALLY breaking down glucose anaerobically (no oxygen). Energy is produced at a FAST RATE (1.6 mol/min) due to the simple anaerobic chemical reactions that take place.
The system is limited due to having a small yield ( 2-3 for every glucose molecule) and can only sustain high intensity efforts for up to approximately 75 seconds.
Fatique
Hydrogen ions accumulate within the working muscles, which in turn changes the PH levels at the muscle site, and the muscle cell becomes more acidic. The change in acidity inhibits glycotic enzymes which are the catalyst for the breakdown of muscle glycogen. Therefore, without the glycolytic enzymes, the breakdown of glucose is less efficient and energy for ATP resynthesis is produced at a slower rate. Thus, forcing muscle contractions to slow down, and the athlete to run slower, decreasing performance
Recoverey
Performing an ACTIVE RECOVERY
at a low intensity , returns the body to pre-exercise conditions quicker by
• Maintaining higher blood flow, and therefore oxygen delivery to the muscles; helping to oxidise metabolic by-products and allows for a more efficient removal of metabolic by products.
• Creating a muscle pump, where muscles create a “squeeze” on surrounding blood vessels, enhancing blood flow;
• Preventing venous pooling.
Active recovery assists with returning the body back to pre- exercise conditions
LIP
balance between the rate of lactate production and removal. This final point (intensity) where lactate removal is relatively equal to lactate production is referred to as an athlete’s lactate inflection point.
